She previously worked at ABC News for 15 years, primarily working with Barbara Walters.

Thomson worked at ABC News for 15 years, where she worked with Barbara Walters, producing interviews for 20/20 and The Barbara Walters Specials.

She has produced interviews with the last four presidents, celebrities and newsmakers, including Walters' interview with Monica Lewinsky -- which was seen by 70 million viewers.

"I'm thrilled Katie Thomson is joining the Piers Morgan Tonight team. She brings unmatched experience and leadership in the booking and producing of big-name interviews and she will be instrumental in helping lead a talented team of bookers and producers," said Jonathan Wald, executive producer of Piers Morgan Tonight.